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| (Empty) |
| 1 <!doctype html> | |
| 2 <html> | |
| 3 <head> | |
| 4 <title>Test premature GC upon OscillatorNode and AudioBufferSourceNode</titl
e> | |
| 5 <script src="../resources/js-test.js"></script> | |
| 6 <script src="resources/audit-util.js"></script> | |
| 7 <script src="resources/audio-testing.js"></script> | |
| 8 </head> | |
| 9 | |
| 10 <body> | |
| 11 <script type="text/javascript"> | |
| 12 description("Test premature GC upon OscillatorNode and AudioBufferSourceNo
de"); | |
| 13 window.jsTestIsAsync = true; | |
| 14 | |
| 15 var sampleRate = 44100; | |
| 16 var renderDuration = 1; | |
| 17 | |
| 18 var audit = Audit.createTaskRunner(); | |
| 19 | |
| 20 | |
| 21 // Create a graph for testing in an isolated scope. Returns |context|. | |
| 22 // Create two nodes and schedule only one of them. Then check if |onended| | |
| 23 // from the scheduled node is fired correctly. | |
| 24 function createGraphInIsolatedScope(sourceNodeType, done) { | |
| 25 | |
| 26 'use strict'; | |
| 27 | |
| 28 var context = new OfflineAudioContext(1, renderDuration * sampleRate, sa
mpleRate); | |
| 29 | |
| 30 { | |
| 31 let node = context['create' + sourceNodeType](); | |
| 32 node.connect(context.destination); | |
| 33 | |
| 34 if (sourceNodeType === 'BufferSource') { | |
| 35 let emptyBuffer = context.createBuffer(1, sampleRate, sampleRate); | |
| 36 node.buffer = emptyBuffer; | |
| 37 } | |
| 38 | |
| 39 // If the node is GCed, |onended| won't be fired. Then this test | |
| 40 // will be timed out because done() will not get called. | |
| 41 node.onended = function () { | |
| 42 testPassed(sourceNodeType + 'Node 1 survived GC and onended event fi
red.'); | |
| 43 done(); | |
| 44 }; | |
| 45 | |
| 46 node.start(); | |
| 47 node.stop(0.5 * renderDuration); | |
| 48 } | |
| 49 | |
| 50 // Suspend and GC before the render finishes. The time position is | |
| 51 // arbitrary. GC should collect |osc2| because it is not scheduled. | |
| 52 context.suspend(0.1 * renderDuration).then(function () { | |
| 53 gc(); | |
| 54 context.resume(); | |
| 55 }); | |
| 56 | |
| 57 context.startRendering(); | |
| 58 } | |
| 59 | |
| 60 audit.defineTask('oscillator-onended', function (done) { | |
| 61 createGraphInIsolatedScope('Oscillator', done); | |
| 62 }); | |
| 63 | |
| 64 audit.defineTask('buffersource-onended', function (done) { | |
| 65 createGraphInIsolatedScope('BufferSource', done); | |
| 66 }); | |
| 67 | |
| 68 audit.defineTask('finish', function (done) { | |
| 69 finishJSTest(); | |
| 70 done(); | |
| 71 }); | |
| 72 | |
| 73 | |
| 74 audit.runTasks( | |
| 75 'oscillator-onended', | |
| 76 'buffersource-onended', | |
| 77 'finish' | |
| 78 ); | |
| 79 | |
| 80 succesfullyParsed = true; | |
| 81 </script> | |
| 82 </body> | |
| 83 </html> | |
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Chromium Code Reviews
Issue 2581463002:
Refactor WebAudio test directory (Closed)
